<template>
  <h1>循环指令</h1>
  <ul>
    <li v-for="item in 5">{{item}}</li>
  </ul>
  <ul>
    <li v-for="p in productArr">{{p}}</li>
  </ul>
  <table border="1px">
    <tr>
      <th>序号</th>
      <th>标题</th>
      <th>价格</th>
      <th>库存</th>
      <th>操作</th>
    </tr>
    <tr v-for="(item,index) in productArr">
      <td>{{index+1}}</td>
      <td>{{item.title}}</td>
      <td>{{item.price}}</td>
      <td>{{item.num}}</td>
      <td><button @click="del(index)">删除</button></td>
    </tr>
  </table>
</template>
<script setup>
  import {ref} from "vue";

  const productArr = ref([
    {title:'苹果',price:50,num:10},
    {title:'山竹',price:500,num:100},
    {title:'西瓜',price:30,num:20},
    {title:'香蕉',price:200,num:50},
  ]);
  //定义删除表格数据的方法
  const del = (index)=>{
    if(confirm('确认要删除吗?')){
      productArr.value.splice(index,1);
    }
  }
  
</script>


<style scoped>

</style>